Replace housesmall with version from 0.93.2.

Solves potentially problematic image origin of prior image.

COPYING.rtro

@@ -160,8 +160,10 @@ weapon/sword/sword_1: Colorized, but otherwise appears to be identical.
 Known problem images:
 g_worm, purple_worm: These are ripoffs of Final Fantasy worms, and should be replaced.
 GreatDemon, medium_demon, fiend: These are ripoffs of the demon designs from 1994 DOS game Dark Legions. GreatDemon is basically a Dark Legions demon posterized to 3 colors, and medium_demon and fiend were derived from GreatDemon.
-housesmall: Appears to be derived from the home icon here: https://www2.ccs.neu.edu/research/demeter/course/projects/demdraw/www/index.html. No known license on the image.
 giantrat: Appears to be derived from an animated rat gif of questionable licensing.
 
 Needs more research:
 burnout, fire: Found at https://web.archive.org/web/19981201235415/http://www.ameritech.net:80/users/schmitz/TROOP33.html under the name radioact3.gif, dating back to December 1998. Does not appear to be origin of it, merely a use. More investigation needed to find origin.
+
+Solved problem images:
+housesmall: v0.92.0 version appears to be derived from the home icon here: https://www2.ccs.neu.edu/research/demeter/course/projects/demdraw/www/index.html. No known license on the image. However, we can just use the v0.93.2 version and avoid the entire thing.

ChangeLog.rtro

@@ -13,6 +13,8 @@ Changes for top of trunk
 	  construct/house/hut_hori.rtro.x11.png: Replace horizontal long house with improved v0.93.2 graphics.
 	* construct/chess_club.rtro.111.png: Use a modified house_1 (from v0.93.2) for the chess club,
 	    the difference being the checkered roof.
+	* construct/house/housesmall.rtro.111.png: Replace with version from v0.93.2. Solves dubious art origin of
+	    previous image.
 
 2023-08-03 Daniel Hawkins
 	* mapbuilding/mb_burningfountain.rtro.111.png,